8.Now, we need to examine the bending in detail. Read carefully. If we were to go back up and look at the picture of the rectangular prism, above, we would see that the light is bent first up and then down. If we turned our computer upside down, it is bent down and then up. From one side, it is bent left and then right, from another, it is bent right and then left. Explain how using the normal to describe how the light is bent is more precise than trying to use up/down/left/right to decribe the bending